Dayco 72237 Radiator Coolant Hose - Lower

Dayco Curved Radiator Hose for Ram 1500

The Dayco 72237 curved radiator hose is a lower coolant hose built for specific Dodge Ram 1500 applications. Made from EPDM rubber and formed to match the routing needed in the cooling system, it supports reliable coolant transfer in 2002-2008 Dodge Ram 1500 trucks.

Key Features

• EPDM construction for coolant-system durability
• Black finish with a curved hose profile
• Single I.D. hose design
• 1 3/4 in. inside diameter at both ends
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Fits the lower radiator hose position on select Dodge Ram 1500 models

Product Details

Dayco Curved Radiator Hose 72237 is engineered as a replacement radiator coolant hose for the lower position on 2002-2008 Dodge Ram 1500 trucks. The EPDM rubber construction is suited for cooling-system service, while the curved shape helps follow the factory hose path. This hose measures 21-1/2 in. in trunk height and uses a 1 3/4 in. inside diameter at each end for a direct-fit style replacement.

This part cross-references Gates 22746 for the same application.

Common Cooling System Issues It Can Address

• Cracked or split lower radiator hose
• Coolant leaks at the hose body or ends
• Softening, swelling, or deterioration from heat and age
• Restricted coolant flow caused by a damaged hose
• Incorrect hose routing from a worn or mismatched replacement

Installation Notes and Tips

Fits 2002-2008 Dodge Ram 1500, lower. Verify hose routing, end diameters, and overall length against the original part before installation. Inspect adjoining clamps, radiator necks, and engine fittings for wear or corrosion so the new hose seals properly in the cooling system. Dayco 72237 is a direct replacement-style hose for the specified application.

Quality Assurance

Dayco manufactures this radiator hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements, supporting consistent material and performance standards for cooling-system service.